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I don't think there is anything different about the Tweed version of the Pro Junior Fromm the standard black one apart from the livery
soundcloud.com/thecolourbox-1
youtube.com/@TheColourboxMusic
I used to have this committed to memory but it escapes me now.
Studio: https://www.voltperoctave.com
Music: https://www.euclideancircuits.com
Me: https://www.jamesrichmond.com
Nice amp, better than the Blues Junior.
I like doing head conversions or putting them into 12" loaded combos.
Studio: https://www.voltperoctave.com
Music: https://www.euclideancircuits.com
Me: https://www.jamesrichmond.com
soundcloud.com/thecolourbox-1
youtube.com/@TheColourboxMusic
I'm not saying it isn't mad.
Studio: https://www.voltperoctave.com
Music: https://www.euclideancircuits.com
Me: https://www.jamesrichmond.com
Some of the early ones had a panel screw which was too long and caused a hum by touching the volume pot, although mine was ok.
They're a little brash sounding but work perfectly in a band mix - just don't expect deep, Fender Twin-style cleans, it's a bit more Vox-like than that. That's through it's own speaker, through a 2x12 it's a glorious sound, much bigger and deeper. There's not much point in doing a head conversion though, it already has a speaker jack and is small and light anyway.
A word of warning though, they can be addictive and you'll end up wanting to run a pair of them.
Still not bad though - there's less difference with the PJ than the BJ.
If it's very hissy, check that the Zobel filter on the OT primary isn't faulty - either a failed resistor (which will make it hiss) or sometimes a shorted cap (which produces a very low output) is a known issue.
I could be wrong but I think the blonde LE version came with an Eminence alnico speaker, as was fitted to the Bassman reissues of the time.
"Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski
"Only two things are infinite - the universe, and human stupidity. And I'm not sure about the universe." - Albert Einstein
I've still got the US made blonde Pro Junior I bought around 94, 95. It's not a typical Fender circuit, so doesn't do the Fender clean thing. It's more like a Marshall 18W (though not quite that circuit). They're loud, and need to be turned up to get the best out of them. That and the inherent hum/hiss they tend to have means it's not a home/recording amp, but they're a great live blues/rock machine.
They run the EL84's too hot, on or over the max anode dissipation. Modding to variable bias and backing it off a bit is a good thing to do. I've also put better pots and jack in mine and changed some of the passive components for better quality/lower noise.
Having said all that, I'm going to sell mine. I built a tweed Deluxe recently and hence don't need the Junior anymore - but could do with the funds to pay for the Deluxe!
Oh - look up Jeff Beck videos on YouTube - he sometimes gigs with a pair of them. The Rock and Roll party video was one occasion.